Parasound JC3+Phono

The Halo JC 3+ phono preamplifier, created by industry expert John Curl, has been newly improved and represents the pinnacle of phono preamp technology. It boasts outstanding performance and versatility, with a discrete Class A input stage, dual-mono design for improved channel separation, and balanced XLR and unbalanced RCA inputs for various turntable setups. Its precision RIAA equalization accurately reproduces the sound of vinyl records for an authentic listening experience, and it supports both Moving Magnet and MC Moving Coil cartridges, making it the top choice for vinyl record enthusiasts. Experience the ultimate in phono preamplification technology with the Halo JC 3+.

 

Key Features:

• Designed by John Curl - creator of the legendary Vendetta Research phono preamp
• Inputs and outputs use Vampire brand 24k gold-plated RCA jacks
• Balanced outputs use Neutrik brand premium XLR jacks
• MM 47k ohm, MC 47k ohm or MC variable 50-550 Ohms
• RIAA accurate within 0.2 dB
• Exclusively Vishay-Dale resistors in the audio path
• Triple shielding; low-carbon mild steel partitions isolate the power supplies & AC wires
• Dual mono design; each audio channel is separately enclosed in its own extruded aluminum enclosure
• Mono switch can improve sound of mono and older LPs

 

Specifications:

Designed by John Curl - creator of the legendary Vendetta Research phono preamp Inputs and outputs use Vampire brand 24k gold-plated RCA jacks Balanced outputs use Neutrik brand premium XLR jacks MM 47k ohm, MC 47k ohm or MC variable 50-550 Ohms RIAA accurate within 0.2 dB Exclusively Vishay-Dale resistors in the audio path Triple shielding; low-carbon mild steel partitions isolate the power supplies & AC wires Dual mono design; each audio channel is separately enclosed in its own extruded aluminum enclosure

Separate high speed-soft recovery rectifiers, filter caps and voltage regulators for each channel Mono switch can improve sound of mono and older LPs Built-in AC line conditioner to prevent AC noise from polluting the circuits AC polarity reverse switch can reduce hum in many systems Non-magnetic aluminum rear panel for purest sound Turn On Options switch: manual or auto with 12v trigger input Premium detachable heavy gauge IEC AC cord 2u Chassis, rack mountable with HRA2 (sold separately)

How the JC 3+ improves on the original JC 3:

Variable MC load adjust independent for each channel from 50-550 ohms with dual gang potentiometers specially made for Parasound by Vishay. Curl-Thompson tweaked circuits to further reduce the JC 3 silent background noise. 24k gold plated copper traces on phono module boards for utmost conductivity and most transparency/detail in the music.

47% larger low ESR power supply filter caps greater reserve for head-snapping dynamics. Ability to turn off illumination of the front panel P logo. Now Available in Silver or Black.

Frequency Response
20 Hz - 20 kHz, +/- 0.2 dB

Total Harmonic Distortion
< 0.01% at 1 kHz

Signal to Noise Ratio, MM
> 87 dB, input shorted, IHF A-weighted
> 78 dB, input shorted, unweighted

Signal to Noise Ratio, MC
> 87 dB, input shorted, IHF A-weighted
> 67 dB, input shorted, unweighted

Interchannel Crosstalk
72 dB at 1 kHz

Input Impedance
MM: 47k Ω
MC: 50 - 550 Ω variable, 47k Ω fixed

Output Impedance
Unbalanced: < 100 Ω
Balanced: < 100 Ω per leg

Input Capacitance
150 pF

Input Sensitivity at 1 kHz
MM: 4mV for 1 V output
MC: 600µV for 1 V output

Total Gain
MM: 48 dB
MC: 64 dB

XLR Pin Identification
1 = Ground (Shield)
2 = Positive
3 = Negative (Return)

AC Power Requirement
Standby: 1 watt
Power On: 12 watts
115 or 230 VAC 50 - 60 Hz
(Selected on Chassis Bottom)

Dimensions
Width: 17-1/4" (437mm)
Depth: 13-3/4" (350mm)
Height, with feet: 4-1/8" (105mm)
Height, without feet: 3-1/2" (89mm)

Weight
Net: 19 lbs. (8.6 Kg)
Shipping: 26 lbs. (11.8 Kg)